Class 9 Mathematics - Sequences and Progressions - Recursive rule Expert Quiz

Level 41 • 1/50 questions • 25 seconds per question.

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Question 1 / 1 0 score

Answered 0/1 Correct 0 Time 00:25

यदि \(a_1=2\) और (a_{n+1}=(n+1)a_n+n) है तो \(a_4\) क्या होगा?

Explanation opens after your attempt

Correct Answer

C. (71)

Step 1

\(a_2=5\), \(a_3=17\), and \(a_4=71\). Exam tip: the multiplier (n+1) changes at every step.

Step 2

The correct answer is C. (71). \(a_2=5\), \(a_3=17\), and \(a_4=71\). Exam tip: the multiplier (n+1) changes at every step.

Step 3

\(a_2=5\), \(a_3=17\) और \(a_4=71\) है। गुणक (n+1) हर चरण में बदलता है।

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